1965 327/300 Exhaust Manifolds

[Dwight P.]

I have a pair of NOS exhaust manifolds for my 1965 327/300 (Non A/C). The LH manifold part number is GM3846563, as the Judging Manual says it should be. The RH manifold is GM Part #3814970. The Juding Manual states that the correct part is GM3797902.

What engine does my RH manifold fit? None of the 1965 engines in the judging manual show this manifold as correct.

Will this manifold fit my engine?

If this manifold will fit my engine, how many points will be deducted for this incorrect manifold?

Thanks,

Dwight

[James W.]

Re: 1965 327/300 Exhaust Manifolds

Dwight,

The 3814970 casting number does not fit any model Corvette as per the 1953 to 1972 NCRS Corvette Specifications Guide. I'd ask Joe Lucia for some help, he has the GM parts book down cold and can probably give you the correct application for that manifold.

Best Regards,

James West
Omaha, NE.

[Duke W.]

Re: 1965 327/300 Exhaust Manifolds

Manual transmission or PG? PG equipped 300s used 2" manifolds, 2.5" on manuals.

Duke

[Dwight P.]

Re: 1965 327/300 Exhaust Manifolds

My car is a manual.

Dwight